refactor(agent): dedupe harness and command workflows

src/commands/config-validation.ts

@@ -0,0 +1,20 @@
+import type { RuntimeEnv } from "../runtime.js";
+import { formatCliCommand } from "../cli/command-format.js";
+import { type OpenClawConfig, readConfigFileSnapshot } from "../config/config.js";
+
+export async function requireValidConfigSnapshot(
+  runtime: RuntimeEnv,
+): Promise<OpenClawConfig | null> {
+  const snapshot = await readConfigFileSnapshot();
+  if (snapshot.exists && !snapshot.valid) {
+    const issues =
+      snapshot.issues.length > 0
+        ? snapshot.issues.map((issue) => `- ${issue.path}: ${issue.message}`).join("\n")
+        : "Unknown validation issue.";
+    runtime.error(`Config invalid:\n${issues}`);
+    runtime.error(`Fix the config or run ${formatCliCommand("openclaw doctor")}.`);
+    runtime.exit(1);
+    return null;
+  }
+  return snapshot.config;
+}